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September 18, 2014

September 18, 2014

Posted by **Kasey** on Monday, July 5, 2010 at 8:54am.

- geometry -
**drwls**, Monday, July 5, 2010 at 9:07amLet the leg lengths be a and b and the hypotentuse be c. a = 15 is the leg length that you know.

Use the Pythagorean right-triangle equation

b^2 = c^2 - a^2 = 625 - 225 = 400

Solve for b.

Rounding off will not be necesary in this case.

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